Occasionally, there are pre owned reconditioned watermakers available at this LINK
| Annual running cost cruising. Biocide, filters etc. | Replacement filter packs - each | Replacement Membrane elements | Long distance spares kits | |
| Electric & engine driven watermakers |
About $300 per year(GB £ 200) (Euro 270) |
Typical $71
( GB £38) (Euro 56) |
Typical $354
(GB £208) (Euro 312) |
Typical $430
(GB £242) (Euro 357) |
| Waterlog watermakers | About $30 per year | None needed. Reusable. | $147 | $235 |
Waterlog is now famous Worldwide for high build quality and remarkable prices.
A waterlog is made in stainless steel (not GRP) and costs substantially less than any other watermaker, further, the running and spares costs are likewise dramatically lower.
How is this possible?
Simplicity of design and the fact that Waterlog is the only producer of yacht watermakers who manufacture everything in-house. This includes their own seals, membranes, pumps etc. Accordingly, there is no component supplier chain: Raw stainless in from the steel mills, finished product out. This dramatically lowers manufacturing costs. The benefit of this is passed to the yacht owner, and in return, Waterlog benefits from volume production.
Waterlog is truly a seminal change in watermaker design and distribution.
Watermaker cost :- Traditional old style water makers worked well and produced good drinking water from sea water. However, they were complex high pressure devices which have many components - lift pumps, filters, high pressure pumps, pressure vessels, hull openings, sea cocks and connection tubes between these various parts. Naturally, maintenance of these parts all contribute to the cost.
Waterlog has changed all that. There are no pipes, lift pumps or connectors to leak or replace, and no filters to renew.
The running cost of a Waterlog while cruising and living aboard permanently is typically about $30 per year for biocide & pickling. Filters are stainless steel and should last a lifetime - just wash them out when necessary. You will never have to purchase replacement filter cartridges.
Irrespective of whatever manufacturer or model of watermaker is used, membrane elements last the average cruising vessel perhaps 2 to 5 years, depending on the amount of use, or, much more importantly, the cleanliness or otherwise of the waters it is used in. Under perfect operating conditions, (which never exist at sea) they will theoretically run continually for about 7 years if properly cared for and the input water is very clean. This perfect scenario will not be available aboard a cruising vessel !
In the case of a Waterlog model 100, the membrane may be exposed to a more unfavorable environment as it does not have a full pre filtration system fitted. All other models are fitted with a complete filtration system.
If it is necessary to replace a membrane in any type of Waterlog model, it is only a matter of removing three screws, sliding out the old membrane and pushing in the new. If required, they are available on-line at any time.
See
the short and very interesting article on watermakers in
rec
boats
Watermaker cost:-
A Waterlog watermaker cost starts at $US 2183 £ 1180 € 1853
Alternatively, a traditional installed yacht watermaker cost will be expected to be between $3,800 and $6,000, and running cost between $300 and $450 per year. They comprise of many inter connected components which increases the watermaker running cost and reduces reliability - see for example, hundreds of reports on the Internet relating to watermaker cost and dependability. One such report is typical and makes interesting reading for any ocean voyager: http://www.btchallenge.com/news/2000/10/News_646.html Almost without exception, these problems stem from multiple separate components where the failure of one element or any of the inter-connections of the watermaker renders the installation inoperable.
From the foregoing, it can be understood why a Waterlog is perhaps half to one third the price of other watermakers and the running cost about one tenth.
But what about the quality of the drinking water it produces?
Answer: Better than any other watermaker in the World - see laboratory reports.
Waterlog - No high pressure pipes
No plumbing 
No installing
(Self contained - only drinking water comes aboard via a flexible steel towing tube)
No pressure tubes or fittings- totally self contained. Your water maker has clean elegant lines that draws attention everywhere it is seen. The modern water maker is no longer a mass of tubing buried somewhere below decks.......
All of these onboard watermaker cost elements have been eliminated in the Waterlog. It consumes no on board power or electricity and is wholly self contained within a solid stainless steel case. It has no high pressure tubes or connectors. This helps to substantially reduce watermaker cost. Only drinking water is pumped aboard, powered by the passage of the vessel through the water.
This results in outstanding reliability. It is so simple that it has less than one sixth the components of traditional watermakers, and has only one rotating part.
What is not there cannot go wrong.
Automation dramatically reduces manufacturing cost
Waterlog- the most rugged, simple, and reliable yacht watermakers in the world
Superb quality - Superb looks - and it can be worked by hand in a liferaft.
Notwithstanding the fact that it is built in pure polished stainless steel (not glass reinforced plastic), Waterlog has had an immense impact on reducing watermaker cost.
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Watermaker cost